Sealing device for faucets, &amp; c.



Patented lune I8 l90l.

' l. 1.- rmzncu. SEALING DEVICE FOR FAUCETS, 81.0.

(Application filed. May 19, 1900.)

' (No Model.)

UNITED STATES PATENT EEICE.

IRWIN J. FRENCH, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSICNCR 0EONE-HALF TO JAMES BENNETT, OF SAME PLACE.

SEALING DEVICE FOR FAUCETS, 81.0.

SPECIFICATION forming part of Letters Patent No. 676,580, dated June 18,1901. Application filed May 19, 1900. Serial ITO-171M39- (No model.)

To all whom it may concern.-

Be it known that'I, IRWIN J. FRENCH, a citizen of the United States,residing at Washington, in the District of Columbia, have invented a newand useful Improvement in Sealing Devices for Faucets, &c., of which thefollowing is a specification.

My invention relates to means of seating the casings of faucets, valves,cocks, &c.; and it consists in forming the casing of the faucets,valves, cocks, &c., with annular seats adapted as faces for the edges offlanges upon the valve, as fully set forth hereinafter and asillustrated in the accompanying drawings, in which- 7 Figure 1 is asectional view of a faucet with my improvement; Figs. 2, 3, 4, and 5,sectional views illustrating different arrangements of the valve-flangesin respect to the seats.

The casing A is of any suitable form and proportions, with a tubularinlet a, nozzle h, and intermediate port surrounded by valveseats at.The valve-seats are annular, and all parts may be upon one plane, asshown in Figs. 3, 4, and 5, or preferably they may be inclined as wellas annular, as shown in Figs.

1 and 2.

The valve B is a disk supported in a plane opposing that of thevalve-seat and provided with a side flange e, the edge of which bearsagainst the valve-seat. This flange may be at right angles to the bodyof the valve, as in Fig. 3, or it may be inclined thereto inward, asshown in Fig. 2, or outward, as shown in Fig. 4. There will of course beas many flanged disks as there are seats. I have found that by providingthe valve with a flange having an edge bearing upon an annular seat I amenabled to secure a very close joint when the valve is on its seat andto maintain the faces which Contact to make the joint-that is, thevalve-face and the edge of the flange-in a better condition forpreventing leakage than with constructions usually employed. The mainadvantage, however, resultsin the use of a relativelyinclined flange andseat, as in Figs. 1, 2, and 4, because in such case as the edge of thevalve By making the valve-seat inclined as well as annular, as shown inFigs. 1 and 2, any pressure of the valve against the seat tending toforce the flange e inward-as, for instance, the water-pressure upon thevalvealso tends totighten the joint. In this case, as in theconstruction illustrated in Fig. 4, a new bearing-face is secured as theflange wears away, if the latter is inclined inward, as shown.

One of the main advantages of a valve having a plurality of flanges withan edge bearing in connection with a multiple seatthat is, a seat havinga plurality of annular faces of different diameters-As that if thereshould be a slight leakage at one section of the valve the other sectionwill present a Closed joint, and when the annular bearingfaces are alsoinclined, as shown in Fig. 1, additional security is affordedfrom thepressure of the fluid acting to force the flanges against their seats.

Preferably each valve or valve-section is stamped of sheet metalconnected centrally to the valve-stem f, so that there is such an amountof elasticity in the disk portion of the valve as will insure theflanges being forced against the seat by the fluid-pressure without thataccurate making of the parts which will be necessary if each valve orvalvesection was absolutely rigid and unyielding.

In order to secure the valves to the stem, each valve has brazed theretoa nut g, which may be screwed onto the portion of the stem f, as shown.In a valve of this character it is not necessary that the stem shouldturn, as better results can be secured by imparting to it a slidingmotion only. That portion of the stem, therefore, which passes throughthe casing A is angular in cross-section; but that party beyond ispreferably rounded to receive the packing D.

Instead of making use of a packing-box E with a gland or follower tohold the packing in place I internally thread the said box, which ispermanently open at the outer end,

and I provide an elastic or compressible packing-block D, threadedexternally to fit the threaded box, so that the packing maybe securedinto the box and will there remain in place without further means ofholding it.

The valve-stem isprovided at the outer end with a suitable handle I,between which and the box E intervenes a coiled spring is, which ten dsto carry the valve-stem and valve outward, the valve being then held inplace by fluid-pressure and being opened by pressure upon the handle I.Any other means, however, of manipulating the valve may be employed anddifferent means of packing the same may be used.

While I have referred to my invention preferably as for use in faucets,I do not limit its application thereto, as the casing may be the casingof a retort, boiler, tank, &c., and the invention used whenever anopening has to be temporarily but tightly sealed.

Without limiting myself to the precise construction and arrangement ofparts shown and described, I claim as my invention- 1. A casing providedwith a plurality of annular seats of different diameters, in comclinedto the planes of the disks, substantially as set forth.

8.'The combination in a faucet of a casing having inlet and outletports, valve-seat, and an internally-threaded packing-box open at itsouter end, an elastic or compressible packing-block threaded externallyand screwed into the box and having a central opening, a valve-stemslidingly supported in the packing-block and carrying a valve at itsinner 3 end to engage the valve-seat; substantially as set forth.

In testimony whereof I have signed my 1 name to this specification inthe presence of two subscribing witnesses.

bination with a valve comprising a plurality of disks of differentdiameters supported on a stem, each disk having a peripheral flange Iextending at an angle therefrom and the edges 5 of the respectiveflanges forming the contact- IRWIN J FRENCH.

Witnesses:

CHARLES E. FOSTER, HOWARD M. GILLMAN, J r.

